Use immediate mode only for debug level profiling • No sample codes available from Apple. Watch wwdc session to grep source-code OR refer to https://github.com/toshi0383/Bitrise-iOS
O R M O R E I N F O • Fix Bugs Faster using Activity Tracing: WWDC 2014 • Unified Logging and Activity Tracing: WWDC 2016 • Measuring Performance Using Logging: WWDC 2018